From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC12EC433C1 for ; Mon, 29 Mar 2021 23:24:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B244F6196C for ; Mon, 29 Mar 2021 23:24:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229656AbhC2XXq (ORCPT ); Mon, 29 Mar 2021 19:23:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230287AbhC2XXj (ORCPT ); Mon, 29 Mar 2021 19:23:39 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C05BC061762 for ; Mon, 29 Mar 2021 16:23:39 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id t20so5170394plr.13 for ; Mon, 29 Mar 2021 16:23:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amacapital-net.20150623.gappssmtp.com; s=20150623; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=i93hLvYxsFCybeNtor23w12Rt5ORCOAw25cIRX3LxjY=; b=SsZlzw0tt3fxyETtQ7MeX09GLDiKldGwNRv5YawW8LhCpywPJuUmDMh7mY6au6NJUN HiCNPx8oqf9Ubz9X3Sx6kRfs8Q9hh7dzxv9mfgZ4x8EiyljWaS8C1XbaHPkYNIdI4S+r 8fmrrPOVZXXQM13Rr4R+ZgwglyLPGmr8awW3zRxnVQ1gFtyxtVsr6B7PzK7ulZiLHQ2Z HFk0RngJuz2ILmC7mC3UM1Gp755U5fdQ6LUCTKEA8ZwLlfNEU8ydHDEwDn3FpPSAcmk1 FmHKgAf5AgmenR3QNjEX7G8PKVBHSVZf1znV6Nko7MEYCOfBmvSFskTznlaGgwT6tzwT GgwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=i93hLvYxsFCybeNtor23w12Rt5ORCOAw25cIRX3LxjY=; b=pAGiNxxfimzUs84QSb3eIv1IgSGFuvFs7RM0kIkCcGq2Hb+e+CCPGGCE1r5yHoOKfc lmzCmMAwcMJKBxx68alS+rhRlr1pTgMRx28bYfPRQi4nVocW6UOTRcXhsQgTspkrh6SI yCJxZIjGeZro/yTaedCAhr8jj23Ujvc2Fa+jTzINzmiBwmuenN7wMAQfkyqnVLeECnu9 3jBdqBtiNabaXkugLY+UwrJIPeHwOmYt5NYwKpRHTsEFBqXpC8aEEu/6+KyDUcWZiWOf ALf02E0Cr1Ifsgp1dvaiOcQ/rk3Im/EVe1UP+3Rf+bhjfO0JASMiT5jPIfwWEE58xYC1 xbiQ== X-Gm-Message-State: AOAM532ZcC8/YnZgr3EaNIhQoEaTqz2SG0wGhEpl4baaiQ48tNPNDZs/ GDth9NWX/ckTxR2f9VaPadsZSQ== X-Google-Smtp-Source: ABdhPJyD4+Zilkfav+lGi1g4pHyAbNAESoqN19318NrUIl925B9DC6Flh/Y033lZKl36Hlk6FO5i1Q== X-Received: by 2002:a17:90a:fb83:: with SMTP id cp3mr1425479pjb.33.1617060218853; Mon, 29 Mar 2021 16:23:38 -0700 (PDT) Received: from ?IPv6:2601:646:c200:1ef2:e17c:78f7:dc94:55dd? ([2601:646:c200:1ef2:e17c:78f7:dc94:55dd]) by smtp.gmail.com with ESMTPSA id g26sm18130550pge.67.2021.03.29.16.23.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 29 Mar 2021 16:23:38 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Andy Lutomirski Mime-Version: 1.0 (1.0) Subject: Re: [PATCH v3 1/1] x86/tdx: Handle MWAIT, MONITOR and WBINVD Date: Mon, 29 Mar 2021 16:23:37 -0700 Message-Id: <377A7B0B-9959-4AFC-A575-7AC20FEE6077@amacapital.net> References: <837afe840f5826bf7fcba07a5e483d7e2283db34.1617059703.git.sathyanarayanan.kuppuswamy@linux.intel.com> Cc: Peter Zijlstra , Andy Lutomirski , Dave Hansen , Andi Kleen , Kirill Shutemov , Kuppuswamy Sathyanarayanan , Dan Williams , Raj Ashok , Sean Christopherson , linux-kernel@vger.kernel.org In-Reply-To: <837afe840f5826bf7fcba07a5e483d7e2283db34.1617059703.git.sathyanarayanan.kuppuswamy@linux.intel.com> To: Kuppuswamy Sathyanarayanan X-Mailer: iPhone Mail (18D61) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Mar 29, 2021, at 4:17 PM, Kuppuswamy Sathyanarayanan wrote: >=20 > =EF=BB=BFIn non-root TDX guest mode, MWAIT, MONITOR and WBINVD instruction= s > are not supported. So handle #VE due to these instructions > appropriately. Is there something I missed elsewhere in the code that checks CPL?